Array substrate and display device

Abstract

Disclosed are an array substrate and a display device which belong to the technical field of displays, and are intended to solve the technical problem of large width of the bezel of a liquid crystal display device. The array substrate is provided thereon with a fan-out zone which includes a plurality of conducting lines. At least one of the conducting lines includes a first metal wire and a second metal wire which are serially connected to each other. The second metal wire has a unit resistivity larger than that of the first metal wire. The conducting lines have different lengths, and the second metal wire in a shorter conducting line is longer than the second metal wire in a longer conducting line.

The invention claimed is: 
     
       1. An array substrate, which is provided thereon with a fan-out zone,
 wherein the fan-out zone comprises a plurality of conducting lines, at least one of the conducting lines comprising a first metal wire and a second metal wire which are in series connection, the second metal wire having a unit resistivity larger than that of the first metal wire, and 
 the conducting lines have different lengths, the second metal wire in a shorter conducting line being longer than the second metal wire in a longer conducting line, 
 wherein the array substrate comprises a first metal layer, a second metal layer, and a third metal layer, 
 wherein some of the conducting lines in the fan-out zone comprise only the first metal wire which comprises a single-layer metal segment and a double-layer metal segment which are in series connection, and 
 wherein the single-layer metal segment is located on the first metal layer or the second metal layer, and 
 the double-layer metal segment is formed by two metal layers connected in parallel and located on the first metal layer and the second metal layer respectively. 
 
     
     
       2. The array substrate according to  claim 1 , wherein the second metal wire is located on the third metal layer. 
     
     
       3. The array substrate according to  claim 2 , wherein the first metal wire is located on the first metal layer or the second metal layer. 
     
     
       4. The array substrate according to  claim 3 , wherein the third metal layer has a thickness smaller than that of the first metal layer and smaller than that of the second metal layer. 
     
     
       5. The array substrate according to  claim 3 , wherein the second metal wire has a width smaller than that of the first metal wire. 
     
     
       6. The array substrate according to  claim 1 , wherein the first metal wire and the second metal wire are connected to each other by a transparent electrode. 
     
     
       7. The array substrate according to  claim 1 , wherein the closer a conducting line is to the right or left side of the fan-out zone, the longer the double-layer metal segment in the first metal wire is. 
     
     
       8. A display device, comprising a color filter substrate and an array substrate,
 wherein the array substrate is provided thereon with a fan-out zone, 
 the fan-out zone comprises a plurality of conducting lines, at least one of the conducting lines comprising a first metal wire and a second metal wire which are in series connection, the second metal wire having a unit resistivity larger than that of the first metal wire, and 
 the conducting lines have different lengths, the second metal wire in a shorter conducting line being longer than the second metal wire in a longer conducting line, 
 wherein the array substrate comprises a first metal layer, a second metal layer, and a third metal layer, 
 wherein some of the conducting lines in the fan-out zone comprise only the first metal wire which comprises a single-layer metal segment and a double-layer metal segment which are in series connection, and 
 wherein the single-layer metal segment is located on the first metal layer or the second metal layer, and 
 the double-layer metal segment is formed by two metal layers connected in parallel and located on the first metal layer and the second metal layer respectively. 
 
     
     
       9. The display device according to  claim 8 , wherein the second metal wire is located on the third metal layer. 
     
     
       10. The display device according to  claim 9 , wherein the first metal wire is located on the first metal layer or the second metal layer. 
     
     
       11. The display device according to  claim 10 , wherein the third metal layer has a thickness smaller than that of the first metal layer and smaller than that of the second metal layer. 
     
     
       12. The display device according to  claim 10 , wherein the second metal wire has a width smaller than that of the first metal wire. 
     
     
       13. The display device according to  claim 8 , wherein the first metal wire and the second metal wire are connected to each other by a transparent electrode. 
     
     
       14. The display device according to  claim 8 , wherein the closer a conducting line is to the right or left side of the fan-out zone, the longer the double-layer metal segment in the first metal wire is.